diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/fs.md | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -198,7 +198,14 @@ Closing the open is the only way back, as with rio's `consctl`. `pty/run` runs one line at a terminal's prompt and answers how it ended, on the same open (factotum's `rpc` shape): write the line, then read `exit N` -once the command has ended and the shell is back at a prompt. It reads +once the command has ended and the shell is back at a prompt, followed by +what it printed. The output is what the screen showed between the command's +start and end marks: stderr interleaved, `\r` progress collapsed to its last +state, no colour; a full-screen program (vim, less) leaves none, and rows a +program redrew above its start are missed. Only its last 64 KiB are kept, +from a line start, and the header then reads `exit N cut M` (M bytes left +out), or `exit N cut` when its start scrolled out of the history. The header +is always the whole first line. It reads `busy` at once when a command is running, text is typed at the prompt or the shell has not drawn its first prompt; `error not run` when the shell refused the line without running it (a fish syntax error; the line is taken back off |